(3 6/7+3/14)*x=2/7*3 1/2
Решите задачу:
1) 3(6/7) + 3/14 = 3(12/14) + 3/14 = 3( 15/14) = 4 1/14 ; 2) 2/7 * 3 (1/2) = 2/7 * 7/2 = 1 ; 3) X = 1 : 4 (1/14) =1 : 57/14 = 14/57.